diff options
author | Jędrzej Nowacki <jedrzej.nowacki@digia.com> | 2013-01-29 14:20:50 +0100 |
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committer | Lars Knoll <lars.knoll@digia.com> | 2013-01-30 13:20:40 +0100 |
commit | 74fba4d8069c946c1ba12b9ac4d4026aaf14118b (patch) | |
tree | 138cc204ec33ef0c838c98355ea84846e11ca1a7 /src/3rdparty/masm/wtf/PageBlock.cpp | |
parent | 0781ecb087b027cccc1c44de1a1c7520cc89e2d2 (diff) |
Say hello to QtV4 module.
Change-Id: I507cd5707b7d7223a0d901cf939896fb2649b684
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Diffstat (limited to 'src/3rdparty/masm/wtf/PageBlock.cpp')
-rw-r--r-- | src/3rdparty/masm/wtf/PageBlock.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/3rdparty/masm/wtf/PageBlock.cpp b/src/3rdparty/masm/wtf/PageBlock.cpp new file mode 100644 index 0000000000..8bbd7eb600 --- /dev/null +++ b/src/3rdparty/masm/wtf/PageBlock.cpp @@ -0,0 +1,78 @@ +/* + * Copyright (C) 2010 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "PageBlock.h" + +#if OS(UNIX) +#include <unistd.h> +#endif + +#if OS(WINDOWS) +#include <malloc.h> +#include <windows.h> +#endif + +namespace WTF { + +static size_t s_pageSize; +static size_t s_pageMask; + +#if OS(UNIX) + +inline size_t systemPageSize() +{ + return getpagesize(); +} + +#elif OS(WINDOWS) + +inline size_t systemPageSize() +{ + static size_t size = 0; + SYSTEM_INFO system_info; + GetSystemInfo(&system_info); + size = system_info.dwPageSize; + return size; +} + +#endif + +size_t pageSize() +{ + if (!s_pageSize) + s_pageSize = systemPageSize(); + ASSERT(isPowerOfTwo(s_pageSize)); + return s_pageSize; +} + +size_t pageMask() +{ + if (!s_pageMask) + s_pageMask = ~(pageSize() - 1); + return s_pageMask; +} + +} // namespace WTF |